The temperature on August 3, 1912 was between 6.0 °C and 21.1 °C and averaged 15.0 °C. There was 8.7 hours of sunshine (56%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 7 » The Helsinki Stock Exchange sees its first transaction.
Day of marriage October 31, 1935
The temperature on October 31, 1935 was between 9.4 °C and 15.0 °C and averaged 12.4 °C. There was 0.2 mm of rain during 0.3 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 6 Bft (strong wind) and was prevailing from the south-southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I499045.php : accessed February 5, 2026), "Grietje Wybenga (1912-)".
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